Espar / Eberspacher exhaust adapter 30mm - 30mm

Genuine Eberspacher (Espar) 30mm to 30mm exhaust adapter with integrated water drain connection, designed for marine diesel heater exhaust systems. This exhaust adapter (exhaust connector / exhaust coupling) allows installation of a water drain coil in 30mm exhaust setups, helping prevent condensation buildup and ensuring reliable heater operation.

30mm to 30mm Exhaust Adapter with Water Drain Connection (1-1/4")

This genuine Eberspacher exhaust adapter is used in 30mm (approximately 1.25 inch / 1-1/4") marine exhaust systems where a water drain needs to be installed. It provides a direct 30mm to 30mm connection while allowing integration of a drain system to remove condensation from the exhaust line.

You can find the compatible water drain coil here: 30mm water drain coil.

This component is typically used as part of a complete diesel heater exhaust system, alongside a 30mm marine exhaust system and a through hull exhaust fitting.

When You Need This Adapter

If your heater has a 30mm exhaust outlet (approximately 1.25 inch / 1-1/4"):

• This 30mm to 30mm adapter (this product)
• 30mm water drain coil
• 30mm marine exhaust system
• 30mm through hull exhaust fitting

If your heater has a 24mm exhaust outlet (approximately 1 inch – common on heaters up to 19,000 BTU, including models such as Eberspacher / Espar D2, D2L, D4, D4L, D4R, D5):

• 24mm to 30mm exhaust adapter
• 24mm adapter water drain coil
• 30mm marine exhaust system
• 30mm through hull exhaust fitting

Using a water drain in your exhaust system helps prevent condensation buildup, improving performance and extending the lifespan of your diesel heater.

Key Features

• Genuine Eberspacher (Espar) exhaust adapter
• Heatso authorized Eberspacher NA dealer – genuine OEM part shipped from California
• 30mm to 30mm exhaust connection
• Integrated connection point for water drain coil
• Designed for 30mm (1.25" / 1-1/4") exhaust systems
• Helps manage condensation in diesel heater exhaust systems
• Suitable for marine heater installations

Common Applications

• Boat diesel heater exhaust systems
• Marine heater installations (boats, yachts, vessels)
• Installing water drain in 30mm exhaust systems
• Preventing condensation buildup in exhaust lines
• Upgrading or modifying marine exhaust setups

Compatibility

Suitable for Eberspacher (Espar), Webasto, and similar marine heaters using 30mm exhaust systems.

Part Number

• 25.1226.89.5900.0Z
• 251226895900 / 25.1226.89.5900 / 25.1226.89.59.00 / 25 1226 89 59 00